Head to head
Caterpillar D3 vs Merlo TF42.7
The Merlo TF42.7 has 781kW more power. The Caterpillar D3 is the bigger machine by 1,562kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Merlo TF42.7 has 781kW more power.
- Operating weight: the Caterpillar D3 is the bigger machine by 1,562kg.
Specifications side by side
| Caterpillar D3 | Merlo TF42.7 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 7800 kg |
| Engine power | 77.6kW (104hp) | 85,9 kW at 2,200 rpm |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Load capacity | - | 4200 kg |
| Lifting height | - | 7 m |
Sources: Caterpillar D3, Merlo TF42.7. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D3 if...
- you want one that is the bigger machine by 1,562kg
Caterpillar's smallest crawler dozer, used for fine grading, landscaping and confined-site work where a full-size dozer won't fit. Common in UK plant hire fleets alongside mini excavators.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Buy or hire the TF42.7 if...
- you want one that has 781kW more power
A medium-capacity telehandler for heavier lifting on construction, agricultural and industrial sites where a 4.2 tonne capacity is needed at moderate height.
Full TF42.7 specifications →Common questions
What is the difference between the Caterpillar D3 and the Merlo TF42.7?
The Merlo TF42.7 has 781kW more power. The Caterpillar D3 is the bigger machine by 1,562kg. The Caterpillar D3 is a small crawler dozer; the Merlo TF42.7 is a 4.2 tonne telehandler.
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